I found error I didn`t add this function

    private void SaveApprovedShipmentRateQuote(Guid shipMethodKey)
    {
       // if (!ModelState.IsValid) return CurrentUmbracoPage();

        var shippingAddress = Basket.SalePreparation().GetShipToAddress();
      //  if (shippingAddress == null) return RedirectToUmbracoPage(GetContentIdByContentName(ShipRateQuotePage));

        // Get the shipment again
        var shipment = Basket.PackageBasket(shippingAddress).FirstOrDefault();

        // Clear any previously saved quotes (eg. the user went back to their basket and started the process over again).
        Basket.SalePreparation().ClearShipmentRateQuotes();

        // get the quote using the "approved shipping method"
        var quote = shipment.ShipmentRateQuoteByShipMethod(shipMethodKey);

        // save the quote
        Basket.SalePreparation().SaveShipmentRateQuote(quote);

       // return SavePayment(); // Proceed to step 3
    }

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